Time of flight camera

Abstract

The present disclosure provides a time-of-flight camera, comprising a light-emitting module and a light-receiving module. The light-emitting module comprises a light source component, a light-reflecting component, and a light-diffusing component. The light source component emits a first light in a first direction. The light-reflecting component and the light-diffusing component are disposed on the light path of the first light. A second light formed by the first light passes through the light-reflecting component and the light-diffusing component. The second light travels toward a second direction to an object to be measured. The object to be measured reflects the second light. The first direction is intersecting with the second direction. The light-receiving module receives the reflected second light and performs the function of sensing.

What is claimed is: 
     
       1. A time-of-flight camera, comprising:
 a light-emitting module comprising a light source component, a light-reflecting component and a light-diffusing component, the light source component emitting a first light in a first direction, the light-reflecting component and the light-diffusing component being disposed on the light path of the first light, a second light formed by the first light passing through the light-reflecting component and the light-diffusing component, the second light traveling toward a second direction to an object to be measured, the object to be measured reflecting the second light, the first direction being intersecting with the second direction; and 
 a light-receiving module receiving the reflected second light and performing the function of sensing; 
 wherein the light-diffusing component is disposed between the light source component and the light-reflecting component and corresponds to a light-reflecting surface of the light-reflecting component the first light is reflected by the light-reflecting component to generate the second light traveling in the second direction after passing through the light-diffusing component. 
 
     
     
       2. The time-of-flight camera according to  claim 1 , wherein the light-reflecting component comprises a prism. 
     
     
       3. The time-of-flight camera according to  claim 2 , further comprising a light reflection driving mechanism; the light reflection driving mechanism is connected to the light-reflecting component and drives the light-reflecting component to move. 
     
     
       4. The time-of-flight camera according to  claim 1 , further comprising a light reflection driving mechanism; the light reflection driving mechanism is connected to the light-reflecting component and drives the light-reflecting component to move. 
     
     
       5. The time-of-flight camera according to  claim 4 , wherein the light reflection driving mechanism drives the light-reflecting component to move linearly. 
     
     
       6. The time-of-flight camera according to  claim 4 , wherein the light reflection driving mechanism drives the light-reflecting component to rotate. 
     
     
       7. The time-of-flight camera according to  claim 1 , wherein the beam angle of the first light is between 22 and 26 degrees. 
     
     
       8. The time-of-flight camera according to  claim 7 , wherein the beam angle of the second light is between 45 and 60 degrees. 
     
     
       9. The time-of-flight camera according to  claim 1 , wherein the light source component is a vertical-cavity surface-emitting laser.